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  3. Blockage of Cell Error

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Blockage of Cell Error

Kabal
Kabal over 11 years ago

I did connect global power nets to all pins. Then did sroute. Then added the standard cells. And the geometry check gives me this errors, thousands of them:

Blockage of Cell U_BUF2/URAM/ram_reg[413][12]

bbox = (322.540, 1477.810) (322.600, 1478.170)

 I am attaching picture pointing to the error with arrow.  The blue lines you see are M1 VDD! and GND! lines, and I have checked the standard cell layout and confirmed that those power lines correctly overlap the power lines of standard cells. 

I am not quite getting why the error checker is not happy and what kind of blockage of cell is it talking about? Whst exactly is blocked?


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  • Kari
    Kari over 10 years ago
    the errors may seem concentrated in the lower left of the design because you probaby hit the 1000 error limit. you can increase the limit in the verifyGeometry run. however, that photo clearly shows a trialroute. i would not run verGeom on a trailroute, it is not DRC-legal routing. 
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  • Kari
    Kari over 10 years ago
    the errors may seem concentrated in the lower left of the design because you probaby hit the 1000 error limit. you can increase the limit in the verifyGeometry run. however, that photo clearly shows a trialroute. i would not run verGeom on a trailroute, it is not DRC-legal routing. 
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